Improvement in cotton-gins



N. PETERS. PHOTO-LITHOGRAPNER, WASHINGTON. ui

'ltaited tatea @met (attire.

ROBERT MCKENNA, OF WHITES STATION, TENNESSEE- Letters Patent No. 108,500, dated October 18, 1870.

IMPROVEMENT IN COTTON-GINS.

The Schedule referred to in these Letters Patent and making part of the same.

Mmm

and longitudinally in the roll-box, at the bottom of' the roll, near the lower edge of the seed-board. Said roller is provided with a series of anges throughout its length, at equal distance from each other, which distance corresponds to the spaces between the saws on the saw-cylinder. Said roller revolves on its axis, and the flanges on said roller, in their revolutions, mesh into the parts of the roll that pass between the saws, thereby expelling the'seed from the roll and pressing the lint .against the saws. The ilz'i-nges, as they revolve, expel the seed from the roll-box, conveying th seed in their exit in contact with the saws, enablin'gt Je'saws to detain and return to the roll any seed that has not been entirely freed from lint.

The object of my invention being- First, to keepthe roll free from surplus seed.

Second, to keep the lint in Contact with the saws.

Third, t-o prevent the seed from accumulating in che roll-box.

Fourth, to prevent the escape oi' seed not properly freed from lint.

Fifth, to increase the capacity 4of the gin as to quantity.

Description of the Accompanying Drawing.

Figure I is a longitudinal vertical section of a cottongin, embodying my invention.

Figure II is a front elevation of the saine. with the seed-board removed.

Figure III is a plan of roller f and ilan'ges q y, enlarged.

Figure IV is a transverse section of roller f and flanges y g, enlarged.

General Description.y a is the frame of a cotton-gin."

b is the saw-cylinder.

c is the brush-cylinder.

(lis the roll.

'e is the endside board of the roll-box i.

All constructed, located, and operated in the usual manner. l

f is the roller or shaft, which constitutes the main part of my invention. It is of equal length with the roll d, and of any desired diameter. It is provided with a series of' flanges, g g, throughout its length, at equal distance from each other, which distance corresponds to the spaces between the saws. I I, on cylinder l).

Rolleif is located horizontally and longitudinally.

in the roll-box i, at the bottom ofthe roll d, near the lower edge of the seed-board h.

Roller f is provided with journals, which are supported in bearings, which are fastened t-o the end side board c, or may be fastened to the grateful m or seed-board h.

Roller f is provided with a pulley, k, and rotation is communicated to it by a belt, I, from cylinder b.

The anges g g, in their revolutions, mesh into the parts of the-roll d that pass between the saws I I,

.thereby expelling the surplus seed from the roll d andV pressing the lint against the saws I I.

The anges g y, as they revolve, expel the seed from the roll-box t, conveying the seed in their exit in contact with the saws I I, enabling the saws I I to detain and return to the roll danyseed that has not been-properly freed from lint.

Gleim.

I claim as my improvement, and desire to secure by Letters Patent- The roller or shaft f aud flanges g g, when conibined and arranged. as specified.

, ROBERT MGK-ENN A.

Witnesses: I

Unas. C. MCOUBBIN, A. R. WIGGs. 

